ZA200402702B - Pharmaceutical composition comprising gamma-butyrobetaine. - Google Patents
Pharmaceutical composition comprising gamma-butyrobetaine. Download PDFInfo
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- ZA200402702B ZA200402702B ZA200402702A ZA200402702A ZA200402702B ZA 200402702 B ZA200402702 B ZA 200402702B ZA 200402702 A ZA200402702 A ZA 200402702A ZA 200402702 A ZA200402702 A ZA 200402702A ZA 200402702 B ZA200402702 B ZA 200402702B
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- South Africa
- Prior art keywords
- butyrobetaine
- composition
- gamma
- gbb
- thp
- Prior art date
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- 239000008194 pharmaceutical composition Substances 0.000 title claims description 16
- JHPNVNIEXXLNTR-UHFFFAOYSA-O 4-(trimethylammonio)butanoic acid Chemical compound C[N+](C)(C)CCCC(O)=O JHPNVNIEXXLNTR-UHFFFAOYSA-O 0.000 title 1
- JHPNVNIEXXLNTR-UHFFFAOYSA-N 4-(trimethylammonio)butanoate Chemical compound C[N+](C)(C)CCCC([O-])=O JHPNVNIEXXLNTR-UHFFFAOYSA-N 0.000 claims description 54
- BNRNXUUZRGQAQC-UHFFFAOYSA-N sildenafil Chemical compound CCCC1=NN(C)C(C(N2)=O)=C1N=C2C(C(=CC=1)OCC)=CC=1S(=O)(=O)N1CCN(C)CC1 BNRNXUUZRGQAQC-UHFFFAOYSA-N 0.000 claims description 20
- 239000000126 substance Substances 0.000 claims description 17
- 230000001568 sexual effect Effects 0.000 claims description 15
- 239000000203 mixture Substances 0.000 claims description 13
- 239000003814 drug Substances 0.000 claims description 10
- 229960003310 sildenafil Drugs 0.000 claims description 10
- 241000124008 Mammalia Species 0.000 claims description 9
- 229940099471 Phosphodiesterase inhibitor Drugs 0.000 claims description 5
- XBDQKXXYIPTUBI-UHFFFAOYSA-M Propionate Chemical compound CCC([O-])=O XBDQKXXYIPTUBI-UHFFFAOYSA-M 0.000 claims description 5
- 239000002571 phosphodiesterase inhibitor Substances 0.000 claims description 5
- 230000000638 stimulation Effects 0.000 claims description 5
- 230000004936 stimulating effect Effects 0.000 claims description 4
- SECKRCOLJRRGGV-UHFFFAOYSA-N Vardenafil Chemical compound CCCC1=NC(C)=C(C(N=2)=O)N1NC=2C(C(=CC=1)OCC)=CC=1S(=O)(=O)N1CCN(CC)CC1 SECKRCOLJRRGGV-UHFFFAOYSA-N 0.000 claims description 2
- 229960000835 tadalafil Drugs 0.000 claims description 2
- IEHKWSGCTWLXFU-IIBYNOLFSA-N tadalafil Chemical compound C1=C2OCOC2=CC([C@@H]2C3=C([C]4C=CC=CC4=N3)C[C@H]3N2C(=O)CN(C3=O)C)=C1 IEHKWSGCTWLXFU-IIBYNOLFSA-N 0.000 claims description 2
- 229960002381 vardenafil Drugs 0.000 claims description 2
- 239000012458 free base Substances 0.000 claims 4
- 238000000034 method Methods 0.000 claims 4
- 150000003839 salts Chemical class 0.000 claims 4
- 239000003085 diluting agent Substances 0.000 claims 1
- 239000003112 inhibitor Substances 0.000 claims 1
- 241000700159 Rattus Species 0.000 description 27
- XQYZDYMELSJDRZ-UHFFFAOYSA-N papaverine Chemical compound C1=C(OC)C(OC)=CC=C1CC1=NC=CC2=CC(OC)=C(OC)C=C12 XQYZDYMELSJDRZ-UHFFFAOYSA-N 0.000 description 20
- 230000000694 effects Effects 0.000 description 18
- 229930008281 A03AD01 - Papaverine Natural products 0.000 description 10
- 229960001789 papaverine Drugs 0.000 description 10
- 241001465754 Metazoa Species 0.000 description 9
- 239000007926 intracavernous injection Substances 0.000 description 8
- 238000002474 experimental method Methods 0.000 description 6
- 229940124597 therapeutic agent Drugs 0.000 description 6
- 239000003651 drinking water Substances 0.000 description 5
- 235000020188 drinking water Nutrition 0.000 description 5
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 4
- 239000004480 active ingredient Substances 0.000 description 4
- 238000001990 intravenous administration Methods 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- 230000006399 behavior Effects 0.000 description 3
- 230000027326 copulation Effects 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 238000002347 injection Methods 0.000 description 3
- PVBQYTCFVWZSJK-UHFFFAOYSA-N meldonium Chemical compound C[N+](C)(C)NCCC([O-])=O PVBQYTCFVWZSJK-UHFFFAOYSA-N 0.000 description 3
- 210000003899 penis Anatomy 0.000 description 3
- 230000000144 pharmacologic effect Effects 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- PHIQHXFUZVPYII-ZCFIWIBFSA-O (R)-carnitinium Chemical compound C[N+](C)(C)C[C@H](O)CC(O)=O PHIQHXFUZVPYII-ZCFIWIBFSA-O 0.000 description 2
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 2
- 239000000654 additive Substances 0.000 description 2
- 238000013019 agitation Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 239000007894 caplet Substances 0.000 description 2
- 239000002775 capsule Substances 0.000 description 2
- 229960004203 carnitine Drugs 0.000 description 2
- 230000002526 effect on cardiovascular system Effects 0.000 description 2
- 239000008187 granular material Substances 0.000 description 2
- 230000001939 inductive effect Effects 0.000 description 2
- 239000006187 pill Substances 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 230000011514 reflex Effects 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- 239000011780 sodium chloride Substances 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 239000003826 tablet Substances 0.000 description 2
- UOTMYNBWXDUBNX-UHFFFAOYSA-N 1-[(3,4-dimethoxyphenyl)methyl]-6,7-dimethoxyisoquinolin-2-ium;chloride Chemical compound Cl.C1=C(OC)C(OC)=CC=C1CC1=NC=CC2=CC(OC)=C(OC)C=C12 UOTMYNBWXDUBNX-UHFFFAOYSA-N 0.000 description 1
- 206010002091 Anaesthesia Diseases 0.000 description 1
- 101000912561 Bos taurus Fibrinogen gamma-B chain Proteins 0.000 description 1
- 206010058892 Carnitine deficiency Diseases 0.000 description 1
- JQIYNMYZKRGDFK-RUFWAXPRSA-N Estradiol dipropionate Chemical compound C1CC2=CC(OC(=O)CC)=CC=C2[C@@H]2[C@@H]1[C@@H]1CC[C@H](OC(=O)CC)[C@@]1(C)CC2 JQIYNMYZKRGDFK-RUFWAXPRSA-N 0.000 description 1
- 229940122224 Gamma butyrobetaine hydroxylase inhibitor Drugs 0.000 description 1
- WQZGKKKJIJFFOK-GASJEMHNSA-N Glucose Natural products OC[C@H]1OC(O)[C@H](O)[C@@H](O)[C@@H]1O WQZGKKKJIJFFOK-GASJEMHNSA-N 0.000 description 1
- 208000010496 Heart Arrest Diseases 0.000 description 1
- 206010021143 Hypoxia Diseases 0.000 description 1
- 206010023644 Lacrimation increased Diseases 0.000 description 1
- 208000006550 Mydriasis Diseases 0.000 description 1
- KWIUHFFTVRNATP-UHFFFAOYSA-O N,N,N-trimethylglycinium Chemical class C[N+](C)(C)CC(O)=O KWIUHFFTVRNATP-UHFFFAOYSA-O 0.000 description 1
- 241000700157 Rattus norvegicus Species 0.000 description 1
- 206010039424 Salivary hypersecretion Diseases 0.000 description 1
- 206010047139 Vasoconstriction Diseases 0.000 description 1
- OIPILFWXSMYKGL-UHFFFAOYSA-N acetylcholine Chemical compound CC(=O)OCC[N+](C)(C)C OIPILFWXSMYKGL-UHFFFAOYSA-N 0.000 description 1
- 229960004373 acetylcholine Drugs 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000037005 anaesthesia Effects 0.000 description 1
- 238000010171 animal model Methods 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 230000037007 arousal Effects 0.000 description 1
- 230000004872 arterial blood pressure Effects 0.000 description 1
- WQZGKKKJIJFFOK-VFUOTHLCSA-N beta-D-glucose Chemical compound OC[C@H]1O[C@@H](O)[C@H](O)[C@@H](O)[C@@H]1O WQZGKKKJIJFFOK-VFUOTHLCSA-N 0.000 description 1
- 235000013361 beverage Nutrition 0.000 description 1
- 230000036760 body temperature Effects 0.000 description 1
- 230000037396 body weight Effects 0.000 description 1
- 210000004556 brain Anatomy 0.000 description 1
- 239000007853 buffer solution Substances 0.000 description 1
- 230000003293 cardioprotective effect Effects 0.000 description 1
- 210000001168 carotid artery common Anatomy 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 235000005911 diet Nutrition 0.000 description 1
- 230000037213 diet Effects 0.000 description 1
- 235000014113 dietary fatty acids Nutrition 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 239000012153 distilled water Substances 0.000 description 1
- 231100000673 dose–response relationship Toxicity 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 230000009986 erectile function Effects 0.000 description 1
- 229950010215 estradiol dipropionate Drugs 0.000 description 1
- 230000012173 estrus Effects 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 229930195729 fatty acid Natural products 0.000 description 1
- 239000000194 fatty acid Substances 0.000 description 1
- 150000004665 fatty acids Chemical class 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 239000008103 glucose Substances 0.000 description 1
- 230000003370 grooming effect Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000001146 hypoxic effect Effects 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 238000010253 intravenous injection Methods 0.000 description 1
- 208000023589 ischemic disease Diseases 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 230000004317 lacrimation Effects 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 150000004668 long chain fatty acids Chemical class 0.000 description 1
- 230000005923 long-lasting effect Effects 0.000 description 1
- 229960002937 meldonium Drugs 0.000 description 1
- 230000002503 metabolic effect Effects 0.000 description 1
- 230000004060 metabolic process Effects 0.000 description 1
- 210000001700 mitochondrial membrane Anatomy 0.000 description 1
- 230000002107 myocardial effect Effects 0.000 description 1
- 229960003207 papaverine hydrochloride Drugs 0.000 description 1
- 230000018052 penile erection Effects 0.000 description 1
- 229960001412 pentobarbital Drugs 0.000 description 1
- WEXRUCMBJFQVBZ-UHFFFAOYSA-N pentobarbital Chemical compound CCCC(C)C1(CC)C(=O)NC(=O)NC1=O WEXRUCMBJFQVBZ-UHFFFAOYSA-N 0.000 description 1
- 239000008177 pharmaceutical agent Substances 0.000 description 1
- 239000002590 phosphodiesterase V inhibitor Substances 0.000 description 1
- 230000001766 physiological effect Effects 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 238000009258 post-therapy Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000002516 radical scavenger Substances 0.000 description 1
- 230000029058 respiratory gaseous exchange Effects 0.000 description 1
- 208000026451 salivation Diseases 0.000 description 1
- 230000009329 sexual behaviour Effects 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 230000002459 sustained effect Effects 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 235000020357 syrup Nutrition 0.000 description 1
- 239000006188 syrup Substances 0.000 description 1
- 208000016505 systemic primary carnitine deficiency disease Diseases 0.000 description 1
- 208000008203 tachypnea Diseases 0.000 description 1
- 206010043089 tachypnoea Diseases 0.000 description 1
- 231100000167 toxic agent Toxicity 0.000 description 1
- 239000003440 toxic substance Substances 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
- 230000025033 vasoconstriction Effects 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K31/00—Medicinal preparations containing organic active ingredients
- A61K31/185—Acids; Anhydrides, halides or salts thereof, e.g. sulfur acids, imidic, hydrazonic or hydroximic acids
- A61K31/205—Amine addition salts of organic acids; Inner quaternary ammonium salts, e.g. betaine, carnitine
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K31/00—Medicinal preparations containing organic active ingredients
- A61K31/33—Heterocyclic compounds
- A61K31/395—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins
- A61K31/495—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins having six-membered rings with two or more nitrogen atoms as the only ring heteroatoms, e.g. piperazine or tetrazines
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K31/00—Medicinal preparations containing organic active ingredients
- A61K31/33—Heterocyclic compounds
- A61K31/395—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins
- A61K31/495—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins having six-membered rings with two or more nitrogen atoms as the only ring heteroatoms, e.g. piperazine or tetrazines
- A61K31/505—Pyrimidines; Hydrogenated pyrimidines, e.g. trimethoprim
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P15/00—Drugs for genital or sexual disorders; Contraceptives
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P15/00—Drugs for genital or sexual disorders; Contraceptives
- A61P15/10—Drugs for genital or sexual disorders; Contraceptives for impotence
Description
PHARMACEUTICAL COMPOSITION COMPRISING GAMMA-BUTYROBETAINE ] Invention relates to a second medical use of a known pharmaceutical agent and composition comprising thereof, particularly to normalize and stimulate sexual activity and potency in mammals. The invention discloses novel affects of known substances, showing in combination unexpected level of pharmacological activity. In particular, a pharmaceutical composition is disclosed, comprising as active ingredients gamma-butyrobetaine (GBB) in combination with 3-(2,2,2-trimethylhydrazinium)propionate (THP) or phosphodiesterase inhibitor. .
GBB (actinine), an intermediate in the synthesis of carnitine in mammalian organism, initially was characterised as a toxic substance, inducing = tachypnea, salivation and lacrimation, mydriasis, vasoconstriction and cardiac arrest in diastole (Linneweh W. Z physiol Chem., 1929;42:181). Further research demonstrated that the toxicity of GBB is extremely low (LDg, = 7000 mg/kg subc.) (Rotzsch W, Lorenz I, Strack E. Acta biol med ger 1959;3:28-36).
The cardiovascular effects of GBB were compared to that of acetylcholine (Hosein EA, McLennan H. Pharmacological action of gamma-butyrobetaine.
Nature 1959;183:328), but later the data were renounced by the same author, who had in fact investigated the effects of the GBB methyl! esther. Another investigators held, that GBB is pharmacologically inert (Hosein EA, Proulx P.
Isolation and probable functions of betaine esters in brain metabolism. Nature 1960;187:321. Burgen ASV, Hobiger F. Brit J Pharmacol. 1949;4:229. Strack
E, Foesterling K. Z physiol Chem. 1953;295:377). Contrary to that, radical scavenger properties (Akahira M, Hara A, Abiko Y. Effect of MET-88, a gamma-butyrobetaine hydroxylase inhibitor, on myocardial derangements induced by hydrogen peroxide in the isolated perfused rat heart. Fundam Clin
Pharmacol. 1997;11(4):356) and cardioprotective activity (Kalvins I, Veveris
M. Latvian patent Nr. 11727) were later demonstrated for GBB. It was also disclosed, that pharmaceutical composition, comprising GBB as the active principle, is useful for treating of carnitine deficiency (Cavazza C. . Pharmaceutical composition comprising gamma-butyrobetaine. UK Patent
Application GB 2 091 101 (1982)). There are no data on the influence of GBB on sexual activity and potency of mammals. 3-(2,2,2-Trimethylhydrazinium)propionate (THP) is known also as a medicine Mildronate or Quaterine (UK patent 2105992). It interferes with carnitine biosynthesis and, consequently, limits the transporting of long-chain fatty acids through mitochondrial membranes (Simkhovich BZ, Shutenko ZV,
Meirena DV et al. 3-(2,2,2-trimethylhydrazinium propionate (THP) - a novel y-
butyrobetaine inhibitor with cardioprotective properties. Biochem Pharmacol 1988:37:195). It has therefore found application as metabolic corrector in ischemic diseases of different origin and cytoprotector in hypoxic conditions.
A pharmaceutical composition for the treatment of cardiovascular , diseases, containing 3-(2,2,2-trimethylhydrazinium)propionate and gamma- butyrobetaine was disclosed in Latvian patent LV 11728.
However, there are no data on the influence of 3-(2,2,2- trimethylhydrazinium)propionate (THP) or combinations thereof with other substances on sexual activity and potency of mammals.
We have surprisingly discovered that gamma-butyrobetaine and/or THP induce substantial and long-lasting increase of sexual activity in laboratory animals. Moreover, the combination of both substances produce a more prolonged and higher increase of the intracavernous pressure than each of the constituent substances separately. Moreover, GBB or combination thereof with
THP, exert a positive influence on intracavernous pressure, induced by reflectory stimulation. Thus we have unexpectedly discovered that GBB or combination thereof with THP, are useful for stimulating of both the sexual activity and potency of mammals. This activity can not be attributed to the known effects of GBB and/or THP on the fatty acids turnover or other known physiological effects of said substances.
The pharmacological effects of GBB, THP and their combination on the sexual activity of mammals was investigated by a model based on rat copulating behaviour in state of physiological depression.
Experiments were conducted on adult Wistar rats of both sexes with initial body weight of 300 - 330 g. During the experiment, the animals were kept in standard crates in groups of 6. The feed was a standartized diet R70 (LABFOR, Lactamin AB, Sweden). The room temperature was kept at 21 - 23 °C, relative humidity at 65 + 10%, 12 hour light/darkness cycle. During one week before the experiment it was established that the average water consumption by the rats was 8.2 - 12% (average - 10%) of their body mass.
Male rats were distributed randomly into 4 groups, each of 6 animals, and supplied for 6 weeks with the following aqueous solutions:
Group 1 (Control Group) - drinking water without any additives;
Group 2 (GBB Group) - drinking water was supplemented by gamma- butyrobetaine (0.015% by weight), resulting in the average daily gamma- ' butyrobetaine intake of 15 mg/kg;
Group 3 (THP Group) - drinking water was supplemented by THP (0.06% by weight), resulting in the average daily THP intake of 60 mg/kg;
Group 4 (GBB + THP Group) - drinking water was supplemented by THP (0.06% by weight) and gamma-butyrobetaine (0.015% by weight), resulting in the average daily THP intake of 60 mg/kg and gamma-butyrobetaine intake of mg/kg.
The copulating activity of male rats was tested four times: after one week, after four weeks, after six weeks and 48 - 50 hours after the discontinuation of substance intake, when all animals were receiving drinking water without additives.
The tests were conducted between 10 and [2 a.m. 6 male rats of one ) group were placed into a clean, well illuminated crate (box). After 5 min. adaptation period 2 female rats were placed into the box for 10 minutes. For each male rat the following data were collected: 1) copulating intensity (number of copulations during the exposition period); 2) arousal period, with separate registration of the delay time - the period until the male rat displays interest in female rat, and number of approaching/mounting attempts during the exposition period; 3) postcoital period - the behaviour of male rats during 5 min. period after the removal of females. The postcoital behaviour was characterized by following marks: 0 - the animal is passive, lays down; 1 - the rat is quiet, grooming; 2 - the rat is mobile, rutting; 3 - the animal is active, aggressive.
The female rats used were in the estrus phase, induced by 1.p. injection of 0.2 ml 0.1% estradiol dipropionate 48 h before the test.
There were no substantial changes in water consumption attributable to experimental substances, while the sexual behaviour of rats in experimental groups was substantially different from that of control group.
Already a week after the start of the experiment, animals receiving GBB or GBB+THP displayed substantially higher sexual interest and activity in sexual contacts, as well as longer postcoital agitation period. The continuing application of GBB resulted in increase of sexual activity, reflected in higher copulation intensity, while rutting and general activity of animals was relatively less influenced (Tables 1 - 4).
Table 1. The influence of therapeutic agents on the number of mounting attempts of male rats 1 week | 4 weeks | 6 weeks | Post-therapy *) p<0.05 v.s. control
Table 2. The influence of therapeutic agents on the delay time before attempts of mounting (min) *) p<0.05 v.s. control
Table 3. The influence of therapeutic agents on the number of copulations *} p<0.05 v.s. control
Table 4. The influence of therapeutic agents on rat post-coital agitation period *) p<0.05 v.s. control
The combined use of GBB and THP resulted in hightened sexual interest and copulating activity during all experimental period. After the discontinuing of medication, only the GBB + THP Group displayed higher copulating activity compared with controls.
Thus we have experimentally demonstrated, that GBB alone and in combination with THP after 6 week tréatment period produces a substantial and lasting increase of copulating activity in male rats. Moreover, we found a surprising increase of efficiency for the combination of two substances as ‘ compared to their activity when used separately.
In further experiments the novel compositions were compared with a known potency stimulator papaverine (Sarosdy MF, Hudnall CH, Erickson DR,
Hardin TC, Novicki DE. A prospective double-blind trial of intracorporeal papaverine versus prostaglandin El in treatment of impotence. J Urol, 1989;141:551), which is an efficient erection stimulant at intracorporeal injection.
Adult male rats, weighing 300 - 410 g were used. The influence of the experimental substances on the penile erection was evaluated using the experimental model, where changes of intracorporeal pressure was measured (Chen KK et al. J Urol, 1992;147:1124). ) Rats were anesthetized by sodium pentobarbital (50 mg/kg: i.p. plus additionally 8 mg/kg/h i.v.). Body temperature was kept at 37 - 37.4 °C (rectal - control) by heating lamp. Endotracheal tube was inserted to assure adequate respiration under anesthesia. Number 25 needle filled with heparinized saline was connected to pressure transducer and introduced into corpus cavernosuin penis. Intracavernous pressure and Il standard lead om an ECG was continuously recorded on physiograph DMP-4B (Narco Bio-Systems, USA). In some experiments arterial pressure in common carotid artery was also recorded.
The effects of experimental substances were determined both at intravenous and intracavernous introduction route. For the intracorporeal injection the substances were dissolved in isotonic (0.9%) NaCl solution and the dose introduced in 0.05 ml of liquid. Papaverine hydrochloride, used in clinics for potency testing, served as the positive standard (intracavernous injection 0.2 mg per rat; intravenously 2.0 mg/kg). Gamma-butyrobetaine (GBB) was introduced separately and in combination with THP or phosphodiesterase inhibitor, in particular, sildenafil.
Gamma-butyrobetaine (GBB) (intracavernous injection 0.02 — 0.1 mg per rat, usually 0.05 mg per rat; intravenously 2.0 mg/kg) and THP (intracavernous injection 0.2 mg per rat; intravenously 10.0 mg/kg) were introduced separately and as combination (GBB+THP).
Sildenafil (intracavernous injection 0.15 mg per rat, intravenously 3.0 mg/kg) was introduced separately and in combination (GBB + sildenafil).
It was discovered that intracavernous injection of GBB produces a pronounced dose-dependent, but relatively short-termed increase of intracorporeal pressure (Table 5).
Table 5. Influence of intracavernous injections of therapeutic agents on intracorporeal pressure in narcotized rats 0 ms [oe |e | mR —Sidesaml | 015 | 38573 | M0e8 | 7507 *) p<0.05 v.s. papaverine. **) p<0.01 v.s. papaverine. ***) in % of the increase produced by papaverine
THP did not produce significant changes of intracorporeal pressure. The activity of GBB in this test was also inferior to that of papaverine. Surprisingly, the effect of the combination of GBB with THP or sildenafil was equal or superior to that of papaverine. Both the effect produced by the combination, and ’ its duration was superior to that induced by each of the ingredients separately.
Since the intracavernous injection is not popular due to inconvenience to - patient, intravenous route was selected for further evaluation.
It was demonstrated that intravenous papaverine and THP display little effect on intracorporeal pressure, while GBB and GBB-THP composition are highly efficient in increasing the intracorporeal pressure (Table 6).
It is important to notice, that the GBB-THP in combination and GBB plus sildenafil sustains its effect 2.25 times or even, correspondingly, 5.46 times longer than the GBB alone. It is also essential to note that only GBB-THP in combination induced a pronounced positive response to reflex penis stimulation resulting in increase of intracorporeal pressure, a response untypical for narcotized animals.
Table 6. Influence of intravenous injections of therapeutic agents on intracavernous pressure in narcotized rats
Et ed Bel of intracavernous 7.3*%+2.0 |2.7£1.2 |21.7%£10.4} 11.8%+3.6 7.3*%+2.1 0303 pressure (mm Hg)
Changes of pressure (mm Hg) *) p<0.05 v.s. papaverine : **) p<0.01 v.s. papaverine
Thus it was demonstrated, that pharmaceutical compositions containing
GBB or combination thereof with THP or sildenafil produced an increase of intracorporeal pressure not only at intracavernous injection, but also, contrary to papaverine, at intravenous route. We demonstrated the surprising efficiency of the composition comprising the combination of GBB and THP and GBB plus sildenafil in inducing the rise of intracorporeal pressure and the unexpected , sustained duration of effect, compared to that of each component of the combination used alone, as well as restoration of positive reflex response to , mechanical penis stimulation.
Considering the positive effects the substances displayed orally, they are useful for stimulation of sexual activity and erection both at norm and at physiological depression of erectile function, being introduced both enterally and parenterally.
In cases when the active ingredients are administered parenterally by injections or orally as drops, syrup or beverage, the pharmaceutical composition contains the combination of gamma-butyrobetaine with THP or gamma- butyrobetaine with sildenafil in the summary amount of 0.5-40% by total weight of pharmaceutical form and distilled water, physiologic saline solution, glucose solution, or buffer solution as a pharmaceutically acceptable solvent. ’ In cases when the combination of active ingredients is administered as tablets, caplets, capsules, pills, granules, or powders, the pharmaceutical composition contains the combination of gamma-butyrobetaine with THP or gamma-butyrobetaine with sildenafil in the summary amount of 0.5 to 5 g by weight per tablet, caplet, capsule, pill, granule, or powder dosage unit.
In cases when the active ingredients are administered transcutaneously, topically, sublingually, intrauretrally or intranasally their content is 0.5-40% by total weight of pharmaceutical form.
The phamacutical composition, in addition, may include other pharmacutical agents, such, as for example, other phosphodiesterase type V inhibitors (vardenafil, tadalafil and related).
Claims (12)
1. Use of gamma-butyrobetaine as free base or pharmaceutically acceptable salt in the production of a medicament for normalizing and stimulating of sexual activity and potency in mammals.
2. A pharmaceutical composition for stimulation of sexual activity and potency in mammals comprising gamma-butyrobetaine in association with pharmaceutically acceptable diluent or carrier.
3. The pharmaceutical composition of Claim 2 further comprising 3-(2,2,2- trimethylhydrazinium)propionate as free base or pharmaceutically acceptable salt.
4. The pharmaceutical composition of Claim 2 further comprising a phosphodiesterase inhibitor.
5. The pharmaceutical composition of Claim 4, wherein the phosphodiesterase inhibitor is type V inhibitor.
6. The pharmaceutical composition of Claim b wherein the phosphodiesterase inhibitor of type V is selected {rom the group consisting of sildenafil, vardenafil, tadalafil and related.
7. Use of the pharmaceutical composition of any of Claims 2 to 6 in the production of a medicament for normalizing and stimulating of sexual activity and potency in mammals.
8. A substance or composition for use in a method of treatment for normalizing and stimulating sexual activity and potency in mammals, said substance or composition comprising gamma-butyrobetaine as free base or pharmaceutically acceptable salt, or a composition of any one of claims 2 to 6, and said method comprising administering said substance or composition.
9. Use according to claim 1 or claim 7, substantially as herein described and illustrated.
10. A composition according to any one of claims 2 to 6, substantially as herein described and illustrated. AMENDED SHEET
9 PCT/LV02/00004
11. A substance or composition for use in a method of treatment according to any one of claims 2 to 6 or 8, substantially as herein described and illustrated.
12. A new use of gamma-butyrobetaine as a free base or pharmaceutically acceptable salt, or of a composition according to any one of claims 2 to 6; a new composition; or a substance or composition for a new use in a method of treatment, substantially as herein described. AMENDED SHEET
Applications Claiming Priority (1)
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LVP-01-134A LV12979B (en) | 2001-09-07 | 2001-09-07 | Pharmaceutical composition |
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ZA200402702B true ZA200402702B (en) | 2005-05-11 |
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ZA200402702A ZA200402702B (en) | 2001-09-07 | 2004-04-06 | Pharmaceutical composition comprising gamma-butyrobetaine. |
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US (1) | US20040242590A1 (en) |
EP (1) | EP1429753B1 (en) |
JP (1) | JP4382480B2 (en) |
KR (1) | KR100841035B1 (en) |
CN (1) | CN1275595C (en) |
AR (1) | AR036423A1 (en) |
AT (1) | ATE350029T1 (en) |
AU (1) | AU2002236340B2 (en) |
BG (1) | BG108673A (en) |
CA (1) | CA2459719C (en) |
CU (1) | CU23347B6 (en) |
DE (1) | DE60217369T2 (en) |
DK (1) | DK1429753T3 (en) |
EA (1) | EA006675B1 (en) |
ES (1) | ES2280505T3 (en) |
HK (1) | HK1068003A1 (en) |
HR (1) | HRPK20040328B3 (en) |
IL (2) | IL160734A0 (en) |
JO (1) | JO2507B1 (en) |
LV (1) | LV12979B (en) |
MA (1) | MA27683A1 (en) |
MX (1) | MXPA04002050A (en) |
MY (1) | MY134074A (en) |
NZ (1) | NZ532178A (en) |
PL (1) | PL368758A1 (en) |
PT (1) | PT1429753E (en) |
SI (1) | SI1429753T1 (en) |
TW (1) | TWI224506B (en) |
WO (1) | WO2003022262A1 (en) |
ZA (1) | ZA200402702B (en) |
Families Citing this family (6)
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DE10325813B4 (en) * | 2003-06-06 | 2007-12-20 | Universitätsklinikum Freiburg | Prophylaxis and / or therapy in portal hypertension |
LV13450B (en) * | 2004-08-24 | 2006-11-20 | Grindeks As | Novel medicinal use of meldonium and pharmaceutical compositions thereof |
BRPI0615972A2 (en) | 2005-07-29 | 2011-05-31 | Concert Pharmaceuticals Inc | isolated compound, mixture, composition, item of manufacture, use of a compound, method for determining compound concentration in a biological sample, diagnostic kit and method for assessing the metabolic stability of a compound |
WO2009095445A1 (en) * | 2008-01-29 | 2009-08-06 | Grindeks | New second medical use of 3-(2,2,2-trimethylhydrazine)propionate dihydrate |
CN101781302B (en) * | 2009-05-31 | 2013-07-10 | 段波 | Adduct generated from phosphodiesterase inhibitor and isoflavone and application thereof |
RU2622757C1 (en) * | 2016-06-02 | 2017-06-19 | федеральное государственное автономное образовательное учреждение высшего образования Первый Московский государственный медицинский университет имени И.М. Сеченова Министерства здравоохранения Российской Федерации (Сеченовский университет) | Method for erectile dysfunction treatment |
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IT1198434B (en) * | 1981-01-06 | 1988-12-21 | Sigma Tau Ind Farmaceuti | PHARMACEUTICAL COMPOSITION INCLUDING BUTYROBETAIN RANGE FOR THE TREATMENT OF SYNDROMES FROM CARNITIN DEFICIENCIES |
LV11728B (en) * | 1995-08-21 | 1997-08-20 | Kalvins Ivars | Pharmaceutical composition |
LV11727B (en) * | 1995-08-21 | 1997-08-20 | Kalvins Ivars | Pharmaceutical composition |
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2001
- 2001-09-07 LV LVP-01-134A patent/LV12979B/en unknown
-
2002
- 2002-03-04 CN CNB028175077A patent/CN1275595C/en not_active Expired - Fee Related
- 2002-03-04 KR KR1020047003366A patent/KR100841035B1/en not_active IP Right Cessation
- 2002-03-04 ES ES02702955T patent/ES2280505T3/en not_active Expired - Lifetime
- 2002-03-04 IL IL16073402A patent/IL160734A0/en unknown
- 2002-03-04 US US10/488,840 patent/US20040242590A1/en not_active Abandoned
- 2002-03-04 EP EP02702955A patent/EP1429753B1/en not_active Expired - Lifetime
- 2002-03-04 DE DE60217369T patent/DE60217369T2/en not_active Expired - Lifetime
- 2002-03-04 JP JP2003526391A patent/JP4382480B2/en not_active Expired - Fee Related
- 2002-03-04 NZ NZ532178A patent/NZ532178A/en unknown
- 2002-03-04 SI SI200230507T patent/SI1429753T1/en unknown
- 2002-03-04 EA EA200400386A patent/EA006675B1/en not_active IP Right Cessation
- 2002-03-04 PL PL02368758A patent/PL368758A1/en unknown
- 2002-03-04 WO PCT/LV2002/000004 patent/WO2003022262A1/en active IP Right Grant
- 2002-03-04 AU AU2002236340A patent/AU2002236340B2/en not_active Ceased
- 2002-03-04 DK DK02702955T patent/DK1429753T3/en active
- 2002-03-04 MX MXPA04002050A patent/MXPA04002050A/en active IP Right Grant
- 2002-03-04 CA CA2459719A patent/CA2459719C/en not_active Expired - Fee Related
- 2002-03-04 AT AT02702955T patent/ATE350029T1/en not_active IP Right Cessation
- 2002-03-04 PT PT02702955T patent/PT1429753E/en unknown
- 2002-08-29 MY MYPI20023224A patent/MY134074A/en unknown
- 2002-09-04 AR ARP020103331A patent/AR036423A1/en unknown
- 2002-09-05 TW TW091120239A patent/TWI224506B/en not_active IP Right Cessation
- 2002-09-05 JO JO200291A patent/JO2507B1/en active
-
2004
- 2004-03-04 CU CU20040040A patent/CU23347B6/en unknown
- 2004-03-04 IL IL160734A patent/IL160734A/en not_active IP Right Cessation
- 2004-04-05 MA MA27608A patent/MA27683A1/en unknown
- 2004-04-06 ZA ZA200402702A patent/ZA200402702B/en unknown
- 2004-04-07 BG BG108673A patent/BG108673A/en unknown
- 2004-04-07 HR HR20040328A patent/HRPK20040328B3/en not_active IP Right Cessation
-
2005
- 2005-01-11 HK HK05100218A patent/HK1068003A1/en not_active IP Right Cessation
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